213224055 has 32 divisors (see below), whose sum is σ = 374588928. Its totient is φ = 102710400.

The previous prime is 213224009. The next prime is 213224059. The reversal of 213224055 is 550422312.

It is not a de Polignac number, because 213224055 - 2⁶ = 213223991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213224059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21790 + ... + 30020.

It is an arithmetic number, because the mean of its divisors is an integer number (11705904).

Almost surely, 2^213224055 is an apocalyptic number.

213224055 is a deficient number, since it is larger than the sum of its proper divisors (161364873).

213224055 is a wasteful number, since it uses less digits than its factorization.

213224055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8407.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 213224055 is about 14602.1934996082. The cubic root of 213224055 is about 597.4185903568.

Adding to 213224055 its reverse (550422312), we get a palindrome (763646367).

The spelling of 213224055 in words is "two hundred thirteen million, two hundred twenty-four thousand, fifty-five".